Name: Helen Maria Hale
Name: John Henry Parry-Glover
Year of Registration: 1892
Quarter of Registration: Apr-May-Jun
District: Westbury On Severn
County: Gloucestershire
Volume: 6a
Page: 485

Yes there are still records to transcribe

The marriage may have been in a registry office, etc (?)

Name: Elena Maria Hale
Year of Registration: 1870
Quarter of Registration: Oct-Nov-Dec
District: Westbury On Severn
County: Gloucestershire
Volume: 6a
Page: 215

Again there are gaps in the transcribed baptisms' most likely reason would be a non conformist family.

Name: Helena M Parry
Death Registration Month/Year: 1952
Age at death (estimated): 81
Registration district: Forest of Dean
Inferred County: Gloucestershire
Volume: 7b
Page: 360

a possible for John :-

Name: John H Parry
Death Registration Month/Year: 1955
Age at death (estimated): 87
Registration district: Gloucester City
Inferred County: Gloucestershire
Volume: 7b
Page: 427

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1911
PARRY JOHN HENRY M 1869 42 Westbury on Severn Gloucestershire
PARRY HELEN MARIA F 1871 40 Westbury on Severn Gloucestershire
PARRY ADA F 1898 13 Westbury on Severn Gloucestershire
PARRY CHARLIE M 1905 6 Westbury on Severn Gloucestershire
PARRY EVA F 1903 8 Westbury on Severn Gloucestershire
PARRY HARRY M 1896 15 Westbury on Severn Gloucestershire
PARRY JOHN M 1894 17 Westbury on Severn Gloucestershire
PARRY NELLIE F 1910 1 Westbury on Severn Gloucestershire
PARRY WILFRED M 1900 11 Westbury on Severn Gloucestershire